APA (7th ed.) Citation

Boyle, R. H., Graves, J., & Watkins, T. H. (1971). The water hustlers. Sierra Club.

Chicago Style (17th ed.) Citation

Boyle, Robert H., John Graves, and T. H. Watkins. The Water Hustlers. San Francisco, Calif. [u.a.]: Sierra Club, 1971.

MLA (9th ed.) Citation

Boyle, Robert H., et al. The Water Hustlers. Sierra Club, 1971.